package cn.hnu.qq.server.dao;

import cn.hnu.qq.entity.Crowd;

public interface CrowdDao {
	
	public Crowd findById(Integer Id);
	
	public Crowd findByName(String acount);
	
	public Boolean isExist(String name);
	
	public Boolean isExist(Integer id);
	
	public void persist(Crowd group);
	
	public void merge(Crowd group);
}
